Green synthesis of blue-fluorescent carbon nanospheres from the pith of tapioca (Manihot esculenta) stem for Fe(III) detection

Nima, Ambika Madhusoodanan; Amritha, Philomina; Lalan, Vidhya; Subodh, G.

doi:10.1007/s10854-020-04689-6

Cited by 15 publications

(7 citation statements)

References 59 publications

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“…The UV-vis absorption spectrum shown in Figure 3a indicates two peaks around 217 and 280 nm. Similar UV-vis spectrum were reported in previous publications, these are attributed to   transition of the CC and n  transition of the CO bonds, respectively [40]. To further clarify optical behavior, we examined fluorescence spectra of the obtained CDs.…”

Section: Resultssupporting

confidence: 80%

“…To further clarify optical behavior, we examined fluorescence spectra of the obtained CDs. In early studies, CDs exhibits the dependence of the emission on the excitation wavelength [36,40]. Similarly, in our case, there is an obvious shift as the excitation wavelength varies, as shown in Figure 3b.…”

Section: Resultssupporting

confidence: 80%

“…The XRD shown in Figure 2a illustrated a broad peak at 2θ~22 o and this should be consistent with the (002) lattice spacing, a formation of highly amorphous carbon-based materials [18]. Moreover, the Raman spectra show an intense peak and a shoulder at around 1370 and 1570 cm -1 , which confirmed the existence of both D (sp 3 hybridized carbon atoms) and G (vibrations of sp 2 hybridized carbon atoms) bands [40]. The result obtained in Figure 2b further proves the amorphous nature of the wine cork-derived CDs [40,41].…”

Section: Resultssupporting

confidence: 71%

“…Moreover, the Raman spectra show an intense peak and a shoulder at around 1370 and 1570 cm -1 , which confirmed the existence of both D (sp 3 hybridized carbon atoms) and G (vibrations of sp 2 hybridized carbon atoms) bands [40]. The result obtained in Figure 2b further proves the amorphous nature of the wine cork-derived CDs [40,41]. The optical properties of CDs were investigated by UV-vis absorption and emission spectra.…”

Section: Resultsmentioning

confidence: 53%

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Hydrothermal synthesis of carbon nanodots from wine cork and biocompatible fluorescent probe

Quang¹,

Hieu²,

Bao³

et al. 2021

Preprint

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We presented a low-cost and simple method to synthesize carbon nanodots (CDs) from waste wine cork using hydrothermal synthesis. The structural and optical properties of the CDs are characterized by TEM, FTIR, Raman, UV-Vis absorption, and photoluminescence (PL) spectra. The analysis results indicated the average diameter of CDs ⁓ 6.2 ± 2.7 nm. Optical measurements showed the phenomenon of excitation-dependent PL and the formation of functional groups on the surface of the particles. CDs with a quantum yield of 1.54% was calculated using quinine sulfate as reference. Furthermore, a probe of wine cork-derived CDs in bioimaging has been successfully applied in living mesenchymal stem cells (MSCs). After treatment with CDs, MSCs exhibited fluorescence including green, yellow, and red colors under the excitation wavelengths in the range 330–385 nm, 450–480 nm, and 510–550 nm, respectively. The achievement demonstrated potential applications of fluorescent CDs in the field of the fluorescent image.

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Section: Resultssupporting

confidence: 80%

Section: Resultssupporting

confidence: 80%

Section: Resultssupporting

confidence: 71%

Section: Resultsmentioning

confidence: 53%

See 2 more Smart Citations

Hydrothermal synthesis of carbon nanodots from wine cork and biocompatible fluorescent probe

Quang¹,

Hieu²,

Bao³

et al. 2021

Preprint

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“…[ 97 ] Table 1 summarises the application in the environment in the last three years. [ 98,99,101–131 ]…”

Section: The Application Of Green Carbon Dots In Analysis and Detectionmentioning

confidence: 99%

Application Progress of Green Carbon Dots in Analysis and Detection

Zuo

et al. 2022

Part & Part Syst Charact

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Green chemistry is currently attracting more and more attention due to its eco‐friendly, and green carbon dots (g‐CDs) are creating a research boom. The g‐CDs have huge application prospects in analysis and detection due to their excellent optical properties, high biocompatibility, and low toxicity compared to other fluorescent materials. Based on the study of g‐CDs, the optical properties, synthesis methods, surface modification methods, and sensing mechanisms of g‐CDs are outlined, and the application in analysis and detection of environmental, food, biomolecules, and other organic small molecules are reviewed. At the same time, the challenges faced by g‐CDs are outlined. This review provides valuable references for further research and wider application of g‐CDs.

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Green Synthesis of Biomass‐Based Fluorescent Carbon Dots for the detection and adsorption of Fe (III)

Jin

Bai

et al. 2023

ChemistrySelect

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Fluorescent carbon dots (CDs) derived from natural biomass have attracted considerable attention due to the superior characteristics of low‐cost, large‐scale, renewability, and excellent biocompatibility. In this work, novel orange‐red fluorescent carbon dots (N‐CDs) were successfully designed and prepared via hydrothermal method by using Peony seed residue and o‐phenylenediamine as precursors. The obtained N‐CDs exhibited good aqueous solubility, outstanding fluorescence properties, and high photostability. Moreover, the fluorescence intensity of N‐CDs at 594 nm exhibited a linear change towards Fe3+ in the range of 0.0–50.0 μM, and the detection limit was 20 nM. For fast and efficient Fe3+ sensing, two kinds of solid‐phase fluorogenic test strips and nanofibrous film composited with N‐CDs were fabricated. Furthermore, solid phase materials composited PVDF with N‐CDs (N‐CDs@PVDF) demonstrated outstanding properties in simultaneous Fe3+ adsorption and detection, providing an integrative solution for the detection and decontamination of heavy metal ions

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Green synthesis of blue-fluorescent carbon nanospheres from the pith of tapioca (Manihot esculenta) stem for Fe(III) detection

Cited by 15 publications

References 59 publications

Hydrothermal synthesis of carbon nanodots from wine cork and biocompatible fluorescent probe

Hydrothermal synthesis of carbon nanodots from wine cork and biocompatible fluorescent probe

Application Progress of Green Carbon Dots in Analysis and Detection

Green Synthesis of Biomass‐Based Fluorescent Carbon Dots for the detection and adsorption of Fe (III)

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